8,425,563

3 × 2808521

Starting at 8,425,563, the Collatz iteration reaches 1 after 199 steps. The first transition is 25276690; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 3 × 2808521

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 11,234,088

Proper Divisor Sum 2,808,525

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #8425553 ← → #8425577

Radix Representation

Decimal	8425563
Binary	100000001001000001011011 (24 bits)
Octal	0o40110133
Hexadecimal	0x80905B

Divisor Catalog (4)

1 3 2,808,521 8,425,563

Collatz Trajectory (199 steps to reach 1)

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

8,425,563 25,276,690 12,638,345 37,915,036 18,957,518 9,478,759 28,436,278 14,218,139 42,654,418 21,327,209 63,981,628 31,990,814 15,995,407 47,986,222 23,993,111 71,979,334 35,989,667 107,969,002 53,984,501 161,953,504 80,976,752 40,488,376 20,244,188 10,122,094 5,061,047 15,183,142 7,591,571 22,774,714 11,387,357 34,162,072 17,081,036 8,540,518 4,270,259 12,810,778 6,405,389 19,216,168 9,608,084 4,804,042 2,402,021 7,206,064 3,603,032 1,801,516 900,758 450,379 1,351,138 675,569 2,026,708 1,013,354 506,677 1,520,032 760,016 380,008 190,004 95,002 47,501 142,504 71,252 35,626 17,813 53,440

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